CN208621105U - A kind of suspended body flowmeter based on heavy caliber flow measurement - Google Patents
A kind of suspended body flowmeter based on heavy caliber flow measurement Download PDFInfo
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- CN208621105U CN208621105U CN201821587715.1U CN201821587715U CN208621105U CN 208621105 U CN208621105 U CN 208621105U CN 201821587715 U CN201821587715 U CN 201821587715U CN 208621105 U CN208621105 U CN 208621105U
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- heavy caliber
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Abstract
The utility model discloses a kind of suspended body flowmeters based on heavy caliber flow measurement, including diameter tube body at a gulp, throttling element is provided in the middle part of the heavy caliber tube body, the position that the large-diameter pipe body is located at the throttling element both ends is connected with one end of two bypass connecting pipes respectively, and the other end of two bypass connecting pipes is connected with the both ends of small-bore suspended body flowmeter respectively.When fluid flows through throttling element full of the fluid of heavy caliber tube body, local contraction will be generated, a fluid stream is concentrated, flow velocity increases, and static pressure reduces, and it is poor that a static pressure is then generated before and after throttling element, the pressure difference and flow are there is certain functional relation, and flow is bigger, and pressure difference is bigger.In the small diameter metal suspended body flowmeter that differential pressure signal is passed to bypass access by connecting pipe, with the variation of differential pressure, flow is also to change therewith, measures its differential flow using small-bore suspended body flowmeter to achieve the purpose that measure large diameter pipeline rate-of flow.
Description
Technical field
The utility model relates to flowmeter technology field more particularly to a kind of float-types based on heavy caliber flow measurement
Meter.
Background technique
Metal pipe float flow meter (also known as metallic rotameter) have structure simple, reliable operation, it is applied widely,
The features such as precision is higher, easy for installation is applicable to various liquid, the flow measurement of gas and corrosive media.It is widely used in
The fields such as the industries such as petrochemical industry, steel, electric power, metallurgy, weaving, food, pharmacy, papermaking and municipal and environment-friendly.
Metal pipe float flow meter is variable area formula flowmeter, i.e., has a Taper Pipe and one in the vertical measurement pipe of flowmeter
A float that can move up and down.Annular gap between float and Taper Pipe changes with the difference of float position, therefore is known as
Variable area formula flowmeter.When float rests on a certain position, impulse force and buoyancy and float sheet of the fluid suffered by float to it
Body gravity reaches balance.The circulation annular space area between float and Taper Pipe keeps certain at this time.When flow becomes larger, suffered by float
Impulse force becomes larger, and the dynamic balance of float is broken and moves up, and annular space area will become larger, and flow flows through more, and impulse force becomes smaller again,
Float reaches balance a new position again again, i.e. a certain height of float represents the size of a certain flow.There is magnetic in float
Position when moving up and down, is transmitted to external indicator by magnetic-coupled form, the pointer of indicator is made to follow float by steel
Movement is to achieve the purpose that measuring flow.
Just because of this measurement method of suspended body flowmeter, cause suspended body flowmeter for the above pipeline of 200mm bore
When measurement, because float weight reasons itself cause flow crushing excessive, it is limited in heavy caliber, the choosing of big flow occasion
With.
Utility model content
The purpose of the utility model is to provide a kind of suspended body flowmeters based on heavy caliber flow measurement, solve existing float
Flowmeter can not reasonable utilization in heavy caliber, big flow occasion flow monitoring work the problem of.
In order to solve the above technical problems, the utility model adopts the following technical solution:
A kind of suspended body flowmeter based on heavy caliber flow measurement of the utility model, including diameter tube body at a gulp are described big
Be provided with throttling element in the middle part of bore tube body, the large-diameter pipe body be located at the position at the throttling element both ends respectively with two sides
One end of road connecting pipe is connected, and the other end of two bypass connecting pipes is connected with the both ends of small-bore suspended body flowmeter respectively
It is logical.
Further, the throttling element is fixedly welded in the middle part of the heavy caliber tube body.
Further, throttle orifice is offered in the middle part of the throttling element.
Further, the throttle orifice is a multistage hole comprising the cylindrical hole of interconnected round platform hole, the circle
Platform hole is close to the water inlet end of heavy caliber tube body, and the cylindrical hole is in the water outlet of the heavy caliber tube body, the round platform hole
The lesser one end of diameter is in contact with the cylindrical hole and the two diameter is equal.
Further, the ratio of the length of the cylindrical hole and tested pipe diameter be 1:100, the diameter of the cylindrical hole with
The ratio of tested pipe diameter is 0.6:1.
Compared with prior art, the advantageous effects of the utility model:
After the utility model places throttling element in large diameter pipeline, throttling element both ends will form certain differential pressure surely, when
When fluid full of pipeline flows through throttling element, local contraction will be generated, a fluid stream is concentrated, and flow velocity increases, and static pressure reduces, and is then existed
One static pressure of generation is poor before and after throttling element, and the pressure difference and flow are there is certain functional relation, and flow is bigger, pressure difference
It is bigger.In the small diameter metal suspended body flowmeter that differential pressure signal is passed to bypass access by connecting pipe, with differential pressure
Variation, flow is also to change therewith, measures its differential flow using small-bore suspended body flowmeter to reach measurement large diameter pipeline
The purpose of rate-of flow.
Detailed description of the invention
The utility model is described in further detail for explanation with reference to the accompanying drawing.
FIG. 1 is a schematic structural view of the utility model；
Description of symbols: 1, heavy caliber tube body；2, throttling element；3, connecting pipe is bypassed；4, small-bore suspended body flowmeter；5,
Throttle orifice；5-1, round platform hole；5-2, cylinder.
Specific embodiment
As shown in Figure 1, a kind of suspended body flowmeter based on heavy caliber flow measurement, including diameter tube body 1 at a gulp, it is described big
The middle part of bore tube body 1 is fixedly installed throttling element 2, and the specific throttling element 2 is fixedly welded in the heavy caliber tube body
Middle part.The surface of the throttling element 2 offers the through-hole passed through for fluid.The heavy caliber tube body 2 is being located at the throttling element 2
Side wall other than both ends is connected with one end of two bypass connecting pipes 3 respectively, the other end of two bypass connecting pipes 3 respectively with
The both ends of small-bore suspended body flowmeter 4 are connected.
Throttle orifice 5 is offered in the middle part of the throttling element.The throttle orifice 5 is a multistage hole comprising is interconnected
Round platform hole 5-1 cylindrical hole 5-2, the round platform hole 5-1 close to the water inlet end of heavy caliber tube body 1, the cylindrical hole 5-2 is close
The water outlet of the heavy caliber tube body 1, described lesser one end of round platform hole 5-1 internal diameter are in contact and two with the cylindrical hole 5-2
Person's diameter is equal.The ratio of the length of the cylindrical hole 5-2 and tested pipe diameter is 1:100, the diameter of the cylindrical hole 5-2 with
The ratio of tested pipe diameter is 0.6:1.
When having fluid to pass through in the heavy caliber tube body of the utility model, the both ends of throttling element will form certain differential pressure, when
When fluid full of pipeline flows through throttling element, local contraction will be generated, a fluid stream is concentrated, and flow velocity increases, and static pressure reduces, and is then existed
One static pressure of generation is poor before and after throttling element, and the pressure difference and flow are there is certain functional relation, and flow is bigger, pressure difference
It is bigger.In the small diameter metal suspended body flowmeter that differential pressure signal is passed to bypass access by bypass connecting pipe, with difference
The variation of pressure, flow are also to change therewith.Large-diameter pipe is directly measured using small diameter metal suspended body flowmeter to realize
The flow of medium in road.
Embodiment described above is only that the preferred embodiment of the utility model is described, not to the utility model
Range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are practical new to this
The various changes and improvements that the technical solution of type is made should all fall into the protection scope that the utility model claims book determines
It is interior.
Claims (5)
1. a kind of suspended body flowmeter based on heavy caliber flow measurement, it is characterised in that: described including diameter tube body (1) at a gulp
It is provided in the middle part of heavy caliber tube body (1) throttling element (2), the heavy caliber tube body (1) is located at the portion at the throttling element (2) both ends
Position is connected with one end of two bypass connecting pipes (3) respectively, and the other end of two bypass connecting pipes (3) is floated with small-bore respectively
The both ends of subflow meter (4) are connected.
2. the suspended body flowmeter according to claim 1 based on heavy caliber flow measurement, it is characterised in that: the throttling element
(2) it is fixedly welded in the middle part of the heavy caliber tube body (1).
3. the suspended body flowmeter according to claim 1 based on heavy caliber flow measurement, it is characterised in that: the throttling element
(2) throttle orifice (5) are offered in the middle part of.
4. the suspended body flowmeter according to claim 3 based on heavy caliber flow measurement, it is characterised in that: the throttle orifice
It (5) is a multistage hole comprising the cylindrical hole (5-2) of interconnected round platform hole (5-1), the round platform hole (5-1) are close
The water inlet end of heavy caliber tube body (1), the cylindrical hole (5-2) is close to the water outlet of the heavy caliber tube body (1), the round platform hole
The lesser one end of (5-1) internal diameter is in contact with the cylindrical hole (5-2) and the two diameter is equal.
5. the suspended body flowmeter according to claim 4 based on heavy caliber flow measurement, it is characterised in that: the cylindrical hole
The ratio of the length of (5-2) and tested pipe diameter is 1:100, the diameter of the cylindrical hole (5-2) and the ratio of tested pipe diameter
For 0.6:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821587715.1U CN208621105U (en) | 2018-09-28 | 2018-09-28 | A kind of suspended body flowmeter based on heavy caliber flow measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821587715.1U CN208621105U (en) | 2018-09-28 | 2018-09-28 | A kind of suspended body flowmeter based on heavy caliber flow measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208621105U true CN208621105U (en) | 2019-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821587715.1U Active CN208621105U (en) | 2018-09-28 | 2018-09-28 | A kind of suspended body flowmeter based on heavy caliber flow measurement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099977A (en) * | 2018-09-28 | 2018-12-28 | 承德万达高新仪表有限公司 | A kind of suspended body flowmeter based on heavy caliber flow measurement |
-
2018
- 2018-09-28 CN CN201821587715.1U patent/CN208621105U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099977A (en) * | 2018-09-28 | 2018-12-28 | 承德万达高新仪表有限公司 | A kind of suspended body flowmeter based on heavy caliber flow measurement |
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